Ltx 2.3 Quality Extend Video
Generate high-quality video with audio from images using LTX-2.3
What it does
Ltx 2.3 Quality Extend Video, in practice.
LTX 2.3 Quality Extend Video seamlessly extends an existing video forward or backward, generating new frames that match the source video's style, lighting, and motion dynamics. Only the generated extension is billed — source frames are never charged.
Run Ltx 2.3 Quality Extend Video
from $0.0030/secParameters
What you can set.
| Parameter | What it does | Options |
|---|---|---|
prompt | Text description of the extended scene. Maximum 2,000 characters. | |
video_url | URL of the input video to extend. Supported formats: mp4, mov, webm, m4v, gif. | |
extend_direction | Direction in which to extend the video. | forward backward |
num_frames | Number of frames to generate for the extension. Must be a multiple of 8 plus 1 (e.g. 25, 41, 81, 121). | default 81 |
resolution | Output video resolution preset. | square_hd square portrait_3_4 portrait_9_16 landscape_4_3 landscape_16_9 |
match_input_fps | Whether to match the frame rate of the source video. | default True |
generate_audio | Whether to generate accompanying audio for the extended video. | default |
seed | Random seed for reproducibility. Use the same seed and prompt to reproduce results. |
Sample prompt
The prompt behind the sample.
After the spacecraft landed, the soldiers stepped off one by one.
extend_direction: forwardnum_frames: 81resolution: landscape_16_9match_input_fps: Truegenerate_audio: FAQ
Short answers.
How much does Ltx 2.3 Quality Extend Video cost?
Pricing starts at $0.0030 per second of video at the base resolution; higher resolutions and longer durations cost more. An 8-second clip at the base tier is about $0.024. Usage is billed per request from your balance — no subscription.
Does Ltx 2.3 Quality Extend Video run uncensored here?
No. Lightricks applies its own content policy to this model regardless of where it is called from. For a route without an extra platform filter use Uncensored MiniMax H3; this page lists Ltx 2.3 Quality Extend Video for everything else it does well.
What does Ltx 2.3 Quality Extend Video take as input?
It is a video-to-video model. Generate high-quality video with audio from images using LTX-2.3
How do I use it?
Enter an invite code to open Chat with the model loaded, or join the waitlist. We open seats in batches and track which models are requested most.
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